Effect of Omitting Adjustments

For the year ending April $30,$ Peck Medical Services Co$.$ mistakenly omitted adjusting entries for $(1)$ $$7,100$ of supplies that were used, $(2)$ unearned revenue of $$11,400$ that was earned, and $(3)$ insurance of $$2,800$ that expired. Indicate the combined effect of the errors on $($a$)$ revenues, $($b$)$ expenses, and $($c$)$ net income for the year ended April $30.$

$($a$)$ Revenues

$fill in the blank $2$

$($b$)$ Expenses

$fill in the blank $4$

$($c$)$ Net income

$fill in the blank $6$